971 in Roman Numerals
971
C (subtracted)MLXXI
nine hundred seventy-one
How CMLXXI is formed
| Place | Value | Symbols |
|---|---|---|
| Hundreds | 900 | C (subtracted)M |
| Tens | 70 | LXX |
| Units | 1 | I |
| Total | 971 | CMLXXI |
CMLXXI is written one place at a time, from the largest to the smallest: CM (900) + LXX (70) + I (1) = 971.
CM is the only subtraction: the C before the M takes away 100, so CM = 900.
Common mistakes
Wrong: DCCCCLXXI
Why isn't 971 written as DCCCCLXXI?
A symbol can't be repeated four times in a row. 900 is CM (1000 − 100), not DCCCC, so 971 is CMLXXI.
Numbers near 971
Properties of 971
- Prime factors
- 971
- Divisors
- 1, 971
- Even or odd
- Odd
- Prime number
- Yes
- Letters in CMLXXI
- 6
971 is a prime number: it can only be divided by 1 and by itself.
971,000 in Roman numerals
With a bar over it (vinculum), C̅M̅L̅X̅X̅I̅ means 971 × 1,000 = 971,000. How Roman numerals work